Typical Malfunction Thresholds

One of the following conditions is met	Conditions A, B, C or D
A. All of the following conditions are met	Conditions 1 and 2
1. EGR1 output terminal voltage	Low voltage
2. Either of the following conditions is met	Condition (a) or (b)
(a) Step motor	Driving
(b) EGR1	Not operating
B. All of the following conditions are met	Conditions 1 and 2
1. EGR2 output terminal voltage	Low voltage
2. Either of the following conditions is met	Condition (a) or (b)
(a) Step motor	Driving
(b) EGR2	Not operating
C. All of the following conditions are met	Conditions 1 and 2
1. EGR3 output terminal voltage	Low voltage
2. Either of the following conditions is met	Condition (a) or (b)
(a) Step motor	Driving
(b) EGR3	Not operating
D. All of the following conditions are met	Conditions 1 and 2
1. EGR4 output terminal voltage	Low voltage
2. Either of the following conditions is met	Condition (a) or (b)
(a) Step motor	Driving
(b) EGR4	Not operating